SIST EN ISO 1463:2021

SLOVENSKI STANDARD
SIST EN ISO 1463:2021
01-julij-2021
Nadomešča:
SIST EN ISO 1463:2004
Kovinske in oksidne prevleke - Merjenje debeline prevleke - Mikroskopska metoda
(ISO 1463:2021)
Metallic and oxide coatings - Measurement of coating thickness - Microscopical method
(ISO 1463:2021)
Metall- und Oxidschichten - Schichtdickenmessung - Mikroskopisches Verfahren (ISO
1463:2021)
Revêtements métalliques et couches d'oxyde - Mesurage de l'épaisseur de revêtement -
Méthode par coupe micrographique (ISO 1463:2021)
Ta slovenski standard je istoveten z: EN ISO 1463:2021
ICS:
25.220.20 Površinska obdelava Surface treatment
25.220.40 Kovinske prevleke Metallic coatings
SIST EN ISO 1463:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 1463:2021

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SIST EN ISO 1463:2021


EN ISO 1463
EUROPEAN STANDARD

NORME EUROPÉENNE

May 2021
EUROPÄISCHE NORM
ICS 25.220.20; 25.220.40 Supersedes EN ISO 1463:2004
English Version

Metallic and oxide coatings - Measurement of coating
thickness - Microscopical method (ISO 1463:2021)
Revêtements métalliques et couches d'oxyde - Metall- und Oxidschichten - Schichtdickenmessung -
Mesurage de l'épaisseur de revêtement - Méthode par Mikroskopisches Verfahren (ISO 1463:2021)
coupe micrographique (ISO 1463:2021)
This European Standard was approved by CEN on 17 April 2021.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 1463:2021 E
worldwide for CEN national Members.

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SIST EN ISO 1463:2021
EN ISO 1463:2021 (E)
Contents Page
European foreword . 3

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SIST EN ISO 1463:2021
EN ISO 1463:2021 (E)
European foreword
This document (EN ISO 1463:2021) has been prepared by Technical Committee ISO/TC 107 "Metallic
and other inorganic coatings" in collaboration with Technical Committee CEN/TC 262 “Metallic and
other inorganic coatings, including for corrosion protection and corrosion testing of metals and alloys”
the secretariat of which is held by BSI.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by November 2021, and conflicting national standards
shall be withdrawn at the latest by November 2021.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 1463:2004.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 1463:2021 has been approved by CEN as EN ISO 1463:2021 without any modification.

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SIST EN ISO 1463:2021

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SIST EN ISO 1463:2021
INTERNATIONAL ISO
STANDARD 1463
Fourth edition
2021-05
Metallic and oxide coatings —
Measurement of coating thickness —
Microscopical method
Revêtements métalliques et couches d'oxyde — Mesurage de
l'épaisseur de revêtement — Méthode par coupe micrographique
Reference number
ISO 1463:2021(E)
©
ISO 2021

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SIST EN ISO 1463:2021
ISO 1463:2021(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2021
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2021 – All rights reserved

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SIST EN ISO 1463:2021
ISO 1463:2021(E)

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Factors relating to measurement uncertainty . 1
5.1 Surface roughness . 1
5.2 Taper of cross-section . 2
5.3 Deformation of coating . 2
5.4 Rounding of edge of coating . 2
5.5 Overplating . 2
5.6 Etching . 2
5.7 Smearing . 2
5.8 Magnification . 2
5.9 Calibration of stage micrometer . 2
5.10 Calibration of the microscope’s length measuring device . 2
5.10.1 Micrometer eyepiece . 2
5.10.2 Digital image processing . 3
5.11 Uniformity of magnification . 3
5.12 Lens quality . 3
5.13 Orientation of measuring lines . 3
5.14 Tube length . 3
6 Preparation of cross-sections . 4
7 Measurement . 4
8 Measurement uncertainty . 4
9 Test report . 4
Annex A (informative) Guidance on the preparation and measurement of cross-sections .6
Annex B (informative) Taper of cross-section and measurement of tooth-constructed coatings .9
Annex C (informative) Some typical etchants for use at room temperature .12
Bibliography .13
© ISO 2021 – All rights reserved iii

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SIST EN ISO 1463:2021
ISO 1463:2021(E)

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/ patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/
iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 107, Metallic and other inorganic coatings,
in collaboration with the European Committee for Standardization (CEN) Technical Committee CEN/
TC 262, Metallic and other inorganic coatings, including for corrosion protection and corrosion testing of
metals and alloys, in accordance with the Agreement on technical cooperation between ISO and CEN
(Vienna Agreement).
This fourth edition cancels and replaces the third edition (ISO 1463:2003), which has been technically
revised.
The main changes compared with the previous edition are as follows:
— digital image processing for light microscopes has been added;
— further hints and methods for the preparation of microsections have been added;
— one hazardous etching recipe has been removed from Annex C.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/ members .html.
iv © ISO 2021 – All rights reserved

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SIST EN ISO 1463:2021
INTERNATIONAL STANDARD ISO 1463:2021(E)
Metallic and oxide coatings — Measurement of coating
thickness — Microscopical method
WARNING — The use of this document can involve hazardous materials, operations and
equipment. This document does not purport to address all of the safety problems associated
with its use. It is the responsibility of users of this document to take appropriate measures to
ensure the safety and health of personnel prior to the application of the document.
1 Scope
This document specifies a method for the measurement of the local thickness of metallic coatings, oxide
layers, and porcelain or vitreous enamel coatings, by the microscopical examination of cross-sections
using an optical microscope.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
3.1
local thickness
mean of the thickness measurements, of which a specified number is made within a reference area
[SOURCE: ISO 2064:1996, 3.4]
4 Principle
A portion of the test specimen is cut out and mounted. The mounted cross-section is prepared by
suitable techniques of grinding, polishing and etching. The thickness of the coating cross-section is
measured by means of a calibrated scale.
NOTE These techniques will be familiar to experienced metallographers, but some guidance is given in
Clause 5 and in Annex A for less experienced operators.
5 Factors relating to measurement uncertainty
5.1 Surface roughness
If the coating or its substrate has a rough surface, one or both of the interfaces bounding the coating
cross-section could be too irregular to permit accurate measurement (see A.6).
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SIST EN ISO 1463:2021
ISO 1463:2021(E)

5.2 Taper of cross-section
If the plane of the cross-section is not perpendicular to the plane of the coating, the measured thickness
will be greater than the true thickness, e.g. an inclination of 10° to the perpendicular will contribute a
1,5 % uncertainty.
NOTE B.1 provides guidance on the taper of a cross-section.
5.3 Deformation of coating
Detrimental deformation of the coating can be caused by excessive temperature or pressure during
mounting and preparation of cross-sections of soft coatings or coatings that melt at a low temperature,
and also by excessive abrasion of brittle materials during preparation of cross-sections.
5.4 Rounding of edge of coating
If the edge of the coating cross-section is rounded, i.e. if the coating cross-section is not completely flat
up to its edges, the true thickness cannot be observed microscopically. Edge rounding can be caused
by improper mounting, grinding, polishing or etching. It is usually minimized by overplating the test
specimen before mounting (see A.2).
5.5 Overplating
Overplating of the test specimen protects the coating edges during preparation of cross-sections and
thus prevents erroneous measurement. Removal of coating material during surface preparation for
overplating can result in a low thickness measurement.
5.6 Etching
Optimum etching produces a clearly defined and narrow dark line at the interface of two metals.
Excessive etching produces a poorly defined or wide line that can result in erroneous measurement.
5.7 Smearing
Improper polishing or overplating with a softer metal can cause smearing of one metal over the other
metal, obscuring the boundary between the coating and the substrate. This problem can be alleviated
by repeating the preparation of the cross-section of the coated metal until repeatability of the thickness
measurement (see A.3 and A.5) is obtained and also by overplating with a harder metal.
5.8 Magnification
For any given coating thickness, measurement uncertainty generally increases with decreasing
magnification. The magnification should be chosen so that the field of view is between 1,5 × and 3 × the
coating thickness.
5.9 Calibration of stage micrometer
Any uncertainty in calibration of the stage micrometer will be reflected in the measurement of the
specimen. A suitable, traceable length standard shall be used.
5.10 Calibration of the microscope’s length measuring device
5.10.1 Micrometer eyepiece
A filar micrometer eyepiece provides a satisfactory means of making the measurement of the specimen.
The measurement will be no more accurate than the calibration of the eyepiece. As calibration is
operator dependent, the eyepiece shall be calibrated by the person making the measurement.
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SIST EN ISO 1463:2021
ISO 1463:2021(E)

Repeated calibrations of the micrometer eyepiece can be reasonably expected to have a spread of less
than 1 %. The distance between the two lines of a stage micrometer used for the calibration shall be
known to within 0,2 µm or 0,1 %, whichever is the greater.
Some image splitting micrometer eyepieces have a nonlinearity that introduces an uncertainty of up to
1 % for short measurement distances.
Uncertainties can be introduced by backlash in the movement of the micrometer eyepiece. To avoid this
uncertainty, ensure that the final motion during alignment of the hairline is always made in the same
direction.
5.10.2 Digital image processing
Microscopes with a triocular tube, camera adapters with projecting lens and digital cameras connected
to a computer with software for image capturing and processing are nowadays state of the art. Similar
to 5.10.1, the measurement will be no more accurate than the adjustment and calibration of the length
measurement function (combination of hardware and software).
For adjustment, digital images from the stage micrometer (in both directions parallel to the x- and y-axis
of the image) are recorded for
...